/triːti əv səˈʃən/ – Phrase
Definition: hiệp ước chuyển nhượng lãnh thổ.
A more thorough explanation: A treaty of cession is a formal agreement between two or more states or countries in which one state agrees to transfer or cede a territory or property to another state. This transfer is typically done in accordance with the terms and conditions outlined in the treaty, which may include provisions related to the transfer of sovereignty, rights, and responsibilities over the ceded territory.
Example: The treaty of cession transferred ownership of the disputed territory from Country A to Country B.